Ventilation device of wool anaerobic tank

Abstract

The utility model relates to the technical field of sewage treatment, in particular to a ventilation device of a wool anaerobic tank, which comprises a reinforcing plate arranged on an anaerobic tank main body, a sealing box body is arranged on the reinforcing plate, an air inlet and an air outlet are arranged on the sealing box body, valves are arranged on the air inlet and the air outlet, and the air inlet and the air outlet are communicated with the reinforcing plate. A ventilation exhaust cover is mounted on one side, close to the air inlet, of the sealed box body, during use, air enters the ventilation boxes on the two sides below through the ventilation exhaust cover, the balance weight cavity and the extending air grooves, and all the air blocking movable plates can be pushed under the action of positive pressure, so that the air is placed into a sludge layer through the air outlet opening; and when the gas supply is stopped, the gas blocking movable plate can be automatically attached to the ventilation box and seals the gas outlet opening under the cooperation of the limiting groove, and the sludge of the sludge layer is blocked by the gas blocking movable plate, so that the condition of backward flowing is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to sewage treatment technical field especially relates to a wool anaerobic tank's aerator. BACKGROUND

[0002] A large amount of wastewater is produced in wool processing, which contains oil, protein, detergent and other chemical substances. In order to effectively treat these wastewater containing high concentration of organic matter and reduce the impact on the environment, a series of wastewater treatment processes are usually used, of which anaerobic tank is an important treatment unit, mainly used for degrading organic pollutants in wastewater. The existing wool anaerobic tank supplies air to the sludge at the bottom of the tank through the air duct and the air supply device.

[0003] For example, the Chinese patent with application number CN201920910313.9 discloses an ABR anaerobic tank of sewage treatment equipment, which includes a cylindrical ABR anaerobic tank, an outlet pipe and an inlet pipe are arranged on the ABR anaerobic tank, the outlet pipe is in communication with the inner side of the annular partition with the smallest radius, a sludge discharge pipe and a sludge inlet pipe are arranged on the ABR anaerobic tank, and an exhaust pipe in communication with the inner cavity of the ABR anaerobic tank is arranged on the side away from the sludge layer. It solves the problem that the sewage treatment state in the anaerobic zone of the existing ABR anaerobic tank is not easy to observe. However, when the air duct is supplied with positive pressure, the aeration operation can be smoothly completed, but when the air supply is stopped, a certain negative pressure will be generated in the main body of the anaerobic tank, which will cause the sludge at the bottom of the tank to be sucked into the air duct, resulting in blockage. SUMMARY

[0004] Therefore, the utility model aims at providing a wool anaerobic tank aerator to solve the technical problem that when the air duct is supplied with positive pressure, the aeration operation can be smoothly completed, but when the air supply is stopped, a certain negative pressure will be generated in the main body of the anaerobic tank, which will cause the sludge at the bottom of the tank to be sucked into the air duct, resulting in blockage.

[0005] To achieve the above purpose, the utility model provides a wool anaerobic tank aerator, which includes a reinforcing plate installed on the main body of the anaerobic tank, a sealed box body installed on the reinforcing plate, an air inlet and an exhaust port installed on the sealed box body, valves arranged on the air inlet and the exhaust port, a ventilation discharge cover installed on one side of the sealed box body close to the air inlet, and the aerator further includes:

[0006] A counterweight cavity is arranged in the sludge in the anaerobic tank, and the upper end of the counterweight cavity is adjustably installed on the ventilation discharge cover.

[0007] The aerator further includes two or more ventilation boxes, the ventilation boxes are connected to the counterweight cavity through a communication mechanism, and a movable air baffle is hinged to the side of the ventilation box.

[0008] Further, the ventilation box is provided with a limiting groove on the side, and the bottom of the ventilation box is closed.

[0009] Further, the ventilation box is provided with an air outlet on the side, and the inner cavity of the ventilation box is communicated with the limiting groove through the air outlet.

[0010] Further, the air outlet is opened during the upward turning of the air blocking movable plate.

[0011] Further, the air blocking movable plate is placed in the limiting groove during the downward turning of the air blocking movable plate, and the air outlet is closed.

[0012] Further, the communication mechanism comprises:

[0013] The extending air groove is communicated with the counterweight cavity at the upper end, and is provided with a limiting groove at the side end;

[0014] The limiting bolt is installed on the side end of the counterweight cavity, and the end of the limiting bolt is matched with the limiting groove.

[0015] Further, the sealing box is provided with a collecting cover.

[0016] Further, the sealing box is provided with a pressure release valve.

[0017] The beneficial effects of the utility model are as follows: the ventilation device of the wool anaerobic tank is used, gas enters the ventilation box on the two sides below through the ventilation exhaust cover, the counterweight cavity and the extending air groove, and each air blocking movable plate is pushed under the action of positive pressure, so that the gas is placed into the sludge layer through the air outlet; when the gas supply is stopped, the air blocking movable plate is automatically attached to the ventilation box, and the air outlet is closed under the cooperation of the limiting groove, the sludge in the sludge layer is blocked by the air blocking movable plate, and the backflow does not occur. DRAWINGS

[0018] In order to more clearly illustrate the technical scheme in the utility model or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or the prior art description, and obviously, the drawings in the following description are only the utility model, and other drawings can be obtained according to these drawings without creative labor for those skilled in the art.

[0019] Figure 1 It is the structural schematic diagram of the utility model;

[0020] Figure 2 It is the structural schematic diagram of the sealing box in the utility model;

[0021] Figure 3 Figure is the state diagram of the utility model in the ventilation;

[0022] Figure 4 Figure is the structure of A in the utility model; Figure 3 Figure is the structure of A in the utility model;

[0023] Figure 5 Figure is the state diagram of the utility model in the stop gas supply;

[0024] Figure 6 Figure is the structure diagram of the utility model in the ventilation box.

[0025] Figure is marked as:

[0026] 1, reinforcing plate; 2, sealed box; 3, air inlet; 4, exhaust port; 5, ventilation cover; 6, counterweight cavity; 7, ventilation box; 8, air baffle; 9, limiting groove; 10, air outlet; 11, extension air groove; 12, limiting groove; 13, limiting bolt; 14, collection cover; 15, pressure release valve. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical scheme and advantages of the utility model more clear and obvious, the following will be further described in detail in combination with specific embodiments.

[0028] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the utility model should be understood as the usual meaning by those skilled in the art to which the utility model belongs. The "first", "second" and similar words used in the utility model do not represent any order, quantity or importance, but are only used to distinguish different components. "Include" or "contain" and similar words mean that the elements or objects before the word cover the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connection" or "connected" and similar words are not limited to physical or mechanical connection, but can include electrical connection, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to represent the relative positional relationship, when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0029] The embodiment of the utility model provides a kind of ventilation device of wool anaerobic tank, as shown in figure Figures 1-6 It includes reinforcing plate 1 installed on anaerobic tank main body, and reinforcing plate 1 is equipped with sealed box 2, and sealed box 2 is equipped with air inlet 3 and exhaust port 4, and valve is arranged on air inlet 3 and exhaust port 4, and ventilation cover 5 is installed on the side of sealed box 2 close to air inlet 3, and the ventilation device further includes:

[0030] A counterweight chamber 6 is introduced into the sludge in the anaerobic tank. The upper end of the counterweight chamber 6 is adjustablely installed on the ventilation hood 5.

[0031] There are at least two vent boxes 7. The two vent boxes 7 are connected to the counterweight cavity 6 through a connecting mechanism. An air-blocking movable plate 8 is hinged to the side of the vent box 7.

[0032] In this embodiment, a limiting groove 9 is provided on the side of the vent box 7, and the bottom of the vent box 7 is closed.

[0033] In this embodiment, an air outlet 10 is also provided on the side of the vent box 7, and the inner cavity of the vent box 7 is connected to the limiting groove 9 through the air outlet 10.

[0034] In this embodiment, the air outlet 10 opens as the air baffle plate 8 flips upward.

[0035] In this embodiment, during the downward flipping process, the air baffle plate 8 is placed in the limiting groove 9, and the air outlet 10 is closed.

[0036] In this embodiment, the communication mechanism includes:

[0037] An extension air groove 11 is provided, the upper end of which is connected to the counterweight cavity 6, and a limiting groove 12 is provided on the side end of the extension air groove 11.

[0038] The limiting bolt 13 is installed on the side end of the counterweight cavity 6, and the end of the limiting bolt 13 is engaged with the limiting groove 12.

[0039] Working process and principle: Before use, the installation height of the counterweight cavity 6 on the ventilation hood 5 is adjusted according to the thickness of the sludge at the bottom of the anaerobic tank, so that the extended air trough 11 can be stably placed in the sludge under the counterweight of the counterweight cavity 6. During use, air is supplied to the sealed box 2 through the air inlet 3. The cavity of the sealed box 2 can temporarily buffer the discharged gas to adapt to the pressure change of the air supply path and avoid instantaneous pressure fluctuations from damaging the internal structure of the device. The gas enters the ventilation box 7 on both sides below through the ventilation hood 5, the counterweight cavity 6 and the extended air trough 11. Under the positive pressure, it can push the various baffle plates 8, so that the gas is placed into the sludge layer through the air outlet 10.

[0040] When the gas supply stops, the air baffle plate 8 will automatically attach to the ventilation box 7 and, with the cooperation of the limiting groove 9, seal the air outlet 10, thus blocking the sludge in the sludge layer.

[0041] In this embodiment, as Figure 1As shown, a collection hood 14 is installed on the sealed box 2, which can serve as a temporary storage space. Exhaust gas is collected in the collection hood 14, which facilitates subsequent centralized discharge and recycling.

[0042] In this embodiment, as Figure 1 As shown, a pressure relief valve 15 is installed on the sealed box 2. When the pressure at the bottom of the anaerobic tank exceeds the set value, the pressure relief valve 15 is opened to release excess gas and prevent damage to the structure of the anaerobic tank.

[0043] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples; within the framework of the present invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in the details for the sake of brevity.

[0044] This utility model is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A ventilation device for a wool anaerobic tank, comprising a reinforcing plate (1) installed on the main body of the anaerobic tank, a sealed box (2) installed on the reinforcing plate (1), an air inlet (3) and an air outlet (4) installed on the sealed box (2), and valves arranged on the air inlet (3) and the air outlet (4), characterized in that, The air exhaust cover (5) is installed on one side of the sealing box (2) near the air inlet (3), and the air exhaust device further comprises: A counterweight cavity (6) is arranged in the sludge in the anaerobic tank, and the upper end of the counterweight cavity (6) is adjustably installed on the air exhaust cover (5); The air exhaust box (7) is provided with at least two air exhaust boxes (7), and the two air exhaust boxes (7) are respectively connected with the counterweight cavity (6) through a communication mechanism.

2. Aeration device for a wool anaerobic tank according to claim 1, characterized in that The air exhaust box (7) is provided with a limiting groove (9) on the side.

3. Aeration device for a wool anaerobic tank according to claim 2, characterized in that The bottom of the air exhaust box (7) is closed.

4. Aeration device for a wool anaerobic tank according to claim 3, characterized in that The air exhaust box (7) is provided with an air outlet opening (10) on the side.

5. A device for aerating an anaerobic lagoon of sheep wool according to claim 3, characterized in that, During the upward turning of the air exhaust box (7), the air outlet opening (10) is opened.

6. A device for aerating an anaerobic lagoon of sheep wool according to claim 1, characterized in that, During the downward turning of the air exhaust box (7), the air exhaust box (7) is placed in the limiting groove (9), and the air outlet opening (10) is closed. The communication mechanism comprises: The extension gas groove (11) is connected with the counterweight cavity (6) at the upper end, and the limiting groove (12) is arranged at the side end of the extension gas groove (11); 7. A device for aerating an anaerobic lagoon according to claim 1, wherein, The limiting bolt (13) is installed on the side end of the counterweight cavity (6), and the end of the limiting bolt (13) is matched with the limiting groove (12).

8. A device for aerating an anaerobic lagoon according to claim 1, wherein, The collecting cover (14) is installed on the sealing box (2). The pressure release valve (15) is installed on the sealing box (2).

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